binary firmwares: http://www.belkin.com/us/support-article?articleNum=4854
open source firmwares: http://www.belkin.com/us/support-article?articleNum=51238
the obsolete url was: https://www.belkin.com/support/opensource/  but now it's the one above ^

openwrt links (to v1 though! different cpu): http://wiki.openwrt.org/toh/belkin/f5d8235-4

openwrt list of belkin routers: http://wiki.openwrt.org/oldwiki/hardware/belkin
openwrt forum: https://forum.openwrt.org/viewtopic.php?id=21998
openwrt how to build: http://wiki.openwrt.org/doc/howto/buildroot.exigence

https://dev.openwrt.org/wiki/platforms
ramips  Ralink RT28xx/RT305X  MIPS  big Endianness

all good https://dev.openwrt.org/

/more info for v1 though: https://wikidevi.com/wiki/Belkin_F5D8235-4_v1
more info for v2 (current): https://wikidevi.com/wiki/Belkin_F5D8235-4_v2_%28v20xx%29
/more info for v21: https://wikidevi.com/wiki/Belkin_F5D8235-4_v2_%28v21xx%29

ddwrt info:
forum: http://www.dd-wrt.com/phpBB2/viewtopic.php?t=53235

supported table: http://www.dd-wrt.com/wiki/index.php/Supported_Devices#Belkin
look for: F5D8235-4   v20xx
"WARNING: Always use TFTP to flash Belkin routers if at all possible! Upgrading dd-wrt from the web interface can lead to a bricked (nonfunctional) unit!"
best to keep this in mind

Also, if for some reason you're getting timeouts when using tftp, then powercycle the router and get TFTP on first try! (don't just software reboot! - reboot does work if running only openwrt though)
link of this is somewhere on the forum


